Download Implementing Electronic Card Payment Systems (Artech House by Cristian Radu PDF
By Cristian Radu
As magnetic stripe playing cards are being changed by way of chip playing cards that provide shoppers and company larger safety opposed to fraud, a brand new commonplace for this expertise is being brought by means of Europay, credit card and Visa (EMV). This quantity provides a finished review of the EMV chip resolution and explains how this know-how presents a chip migration direction, the place interoperability performs a primary function within the company version. The paintings bargains an knowing of the protection difficulties linked to magnetic stripe playing cards, and provides the company case for chip migration. additionally, it explains the implementation of multi-application choice mechanisms in EMV chip playing cards and terminals, and exhibits you the way to layout a multi-application EMV chip card structure.
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Extra resources for Implementing Electronic Card Payment Systems (Artech House Computer Security Series)
Example text
3 Static authenticator versus modifying financial data Modifying the content of financial data stored on the magnetic stripe can help an attacker to mislead the authorization process, especially when authorization is carried out locally at the point of service. Any field of a magnetic track can be a target for the attacker; however, the following attempts are most common: ◗ If an attacker has found an expired card that was not destroyed by the cardholder but rather negligently thrown away, he would try to extend the expiration date of this payment card.
The transaction date, which is a parameter specifying the date of the last cash dispense transaction, can also be dynamically updated on track 3. This parameter can be used in the terminal risk management process for determining the frequency of cash dispensing required by the cardholder, which could reveal a suspect account activity. Track 3 offers the possibility of dynamically updating fields on the magnetic stripe right at the point of service, which confers certain advantages concerning the security of the payment card.
4 we present a method for using this field, together with a synchronous value kept in the issuer host, to detect counterfeit cards. ◗ The crypto check digits (CCD) can be dynamically updated on the card. They can provide a means of verifying the integrity of the data elements recorded on track 3 that where dynamically modified during the current transaction. ◗ The additional data field can store other data customized according to the card issuer’s policies to provide security protections for improving card authenticity and cardholder verification.